Side bearing.



E. JZGLPB SIDE BEARING.

APPLICATION FILED EB...12, 191,3, Ll, atentsd Aug. 18, 1914. 2,SEEETSSHIJET 2.

wwNEssEs v l INVENTOR BY Y Y A ATTORNEY Unirse ABNER K. WOLFE, OFATCHSN, KANSAS, ASSGNCR OF ONE-HALF T0 CLEMENT I DAVIS, 0F RULO,NEBRASKA.

SEDE BEARING.

messes.

Specification of Letters Patent.

.1i-*atenten Aug., 18, 1914.

Application filed February 12, 1913. gerial No. 748,00S.

To all whom it may conf-cm Be it known that l, nnnn li. TWomen, acitizen of the United States,rcsiding at Atchison, in the county ofAtchison and State ot Kansas, have invented a ne and useful SideBearing, ot' which the following` is a specification,

rthe invention relates to side bearings for trucks o1" street cars andrailway cars. l

The object of the present invention is to improve the construction oiEside bearings, more especially that. shown and described in Patent No.1,031,761, granted to me July 9, 1912, and to provide a simple,inexpensive and easily manufactured side bearing, designed tor use onthe trucks et both street cars and railway cars, and adapted toeliminate the spider frames or". the aforesaid patent, and equipped withmeans for enabling it to be4 readily adjusted both in the preliminaryadjustment or positioningl of the parts of the side bearingl and also totake up wear and obviate the necessity of cuttingT shinoininggl platesfor this purpose.

lith these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated 'in the accompanying drawings, and pointed outin the claimshereto appended; it being iurderstood that various changes in the `form,proportion', size and minor details of construction,'within 'the scopeof the claims, may be resorted to without departing from thespirit orsacrificing any of `the advantages of the invention.

ln the drawings z-Figure 1 is a side elevation ot a side bearing,constructed in accordance with this invention and shown ape plied to aportion of a street car truck. F 2 is a horizontal sectional view of thesame. Fig. 3 is a front elevation of the truck, the side bearings being;in section, Y' Fig, 4 is a vertical sectional view on the line 4 4 ofFig. Fig. 5 is a detail perspective view of the Upper bearing plate,Fig. 6 is a similar view of the lower bearing plate. Fig. l is a detailperspective view of one of the adjustable'wedgesha-ped plates. Fig. 8 isa perspective view of a side bearing designed for use on the trucks ofrailway cars. l

Like numerals f' regterencefdesignate cor.n responding parts in el thei'igures oilthe niels-is,

illustrated the preferred embodiment of the invention, the side bearingcomprises in its construction upper and lower bearing plates l and 2,secured, respectively, by vertical bolts B and 4 to an upper bodybolster 5 and a lower truck bolster o and curved longitudinally andprovided with arcuate grooves 7 and 8 formed in the lower face of theuooer lxa'iriiigr plate and in the upper iace et the lower bearing plateand receiving antifriction rollers t). rlhe arcuate grooves 7 and 8 forma runway i'or the antifriction rollers, and each groove has a greaterdepth in the center and is provided with inclined approaches presentinga concave contour viewed longitudinally as in Fig. ei of the drawings.rThe upper bearing plate is preferably provided at the sides and ends ofits groove with depending` flanges, but thev groove ot the lower bearingplate is preferably open at the iront at 10.

Any number of antifriction rollers, which are in the form of truncatedcones, may be employed, but when the side bearing is designed for nse onstreet cars, they are preferably arr: nged in pairs and tied together byapproximately Ushaped yoles 11. Each yoke 11 consists ot straightdivergent side portionsand an inner coiniectingl` portion, and it isadapted to maintain the rollers in. proper relative position and itassists their4 return to a position centrally of the side bearings. Thesides of the yoke extend throughl cential openings in vthe, antifrictionrollers ron'the' inner ends thereof, tie connecting portion bei Alocated at the inner sides of the bearing` plates. lihe outer terminalsof the side portions of the yoli.J are provided with perforation for thereceptionx of keys 12, or other suitable fastening devices for 5retaining the sides of the yoke in the open- Yings of the antifrictionrollers.

Under normal. circumstances when the two holsters are in parallelrelation, the weight ot the car is supported by the rollers and by thecenter bearing 13, as clearly shownin F of the drawings.4 Under suchcircumstances, the antifriction rollin*J occupies the positionillust-rated in Figs! 11' and et'in the deepest portion oftherunways'-lio5 of the bearing plates, but hen a cnrveis reached and thetruck bou er swings 'to a `position at an angle to the body bolster, theantiriction roller will travel up theinclined or bearing of the lowerbearingp-late, 13o

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iin'

thus lifting the body holster with its center plate la out of contactwith the plate of the truck boliter (3 throwing the entire load on theeide hearing`I and relieving the center hearing' while the car isrounding a curve. i-issoon as the car leaves a curve, the truclr returnsto its norn'ial position through gravity.

ln order to enable the bearing plates to be 'fln'operly adjusted to thebody and truck holsters in assembling the parts and also to enable wearof the parts to be. readily taken up without the trouble andinconvenience of cutting shiinming plates, the lower bearing plate isprovided with tapered or wedger-hape fl end portions lf3, presentinglower inclined faces lt" and provided with transverse ctnrugations 1S atthe inner portions o1" the said inclined faces 17. The corrugatedinclined bottom faces of the lower hearing are engaged by adjustablewedges 19, consisting of tapered or wedge-shaped plates or pieces havinghorizontal lower fates to tit the upper face of the truck bolder andpresenting inclined upper faces, w ich are provided with corrugations toengage the corrucations of the lower bearing plate. The uljustablewedges are provided with vertical longitudinal slots 2l, extending infardly from the outer end edges of the wedges and terminating short ofthe inner ends of the same and receiving the lower v ical bolts et,which fasten the lower bearing plate to the trucl; bolster and securethe wed in their adjustment. The interlock ing of the .vedgcs with thelower bearing plate jfrevents any liability of the '-.vedgesaccidentally slipping especially when the weight is shifted to andsolely sustained by ldo bearings. By adjusting the wedges inwardly andoutwardly', the lower bearing plates may be raised and lowered, and thewed es are also susceptible of independent adjuameut to level the lowerbearing plate or otherwise properly position the saine. lilith the upperand lower bolts 3 and 4 are preferably provided with square hleads,which are seated in recesses in the grooved faces of the u @per andlower bearing plates. rr`he form of side bearing illustrated in 'l to 7inclusive is designed particuy for street car 'uur-nts are equallyapplicable to side bearings of railway car trucks, and in Fig. 8 of the'.rawings is illustrated a railway car truck side bearing in which onlya single antifriction roller 2Q is employed. The upper bearjug 'plate221 is provided with renlarged side es 211.-, having longitudinal slots25 in ,t operate central or axial projections QG of the antiiictionroller 22. rThe axial projections 2o, which are loose in the slots Q5,may he formed in any suitable manner, L as by securing within thecentral openi continuous piu of a length to extend service, but theimprove-r entirely through and project beyond the roller, but screws orany other similar means may be employed. These projections 26 areadapted tio prevent displacement of the antifriction roller. The upperbearing plate 23 and the lower bearing plate Q7 have concave faces 28and 29 to coact with the antifrictionroller, and the lower bearing plateis provided with adjusting means similar to those heretofore described,the terminal porper bearing plate secured to the body bol-- ster, alowerbearing plate having tapered or wedgcwshaped end portionspresenting lower inclined faces, the intermediate portion of thc lower`bearing plate having a horizontal lower face to tit against and restupon the truck bolster, an antifriction device interposed between theupper and lower hearin(v plates, and adjustable wedges arranged upon thetruck bolster beneath the end portions of the lower bearing plate andpresenting upper inclined faces to the latter and sujiporting the same,said wedges being movable with respect to the lower bearing plate andadapted to raise and lower the same without affecting the relativearrangement of the said bearing plates.

2. 'ljhe combination with body and truck holsters, of a side bearingincluding an upper bearing plate secured to the body bolster, a lowerbearing plate having tapered or wedge-shaped end portions presentinglower inclined faces, the intermediate portion of the lower bearingplate having a horizontal lower face to fit against the truck holster,an antifriction device interposed between the upper andlower bearingplates,

and adjustable wedges arranged upon the' bols-ters, of a` side bearingiucludin'g upper ing plate being secured to and the lower bearing platehaving tapered with longitudinal Licentie and lower bearing plates, theupper bearing platebeing secured to the body bolster and tbe lowerbearing plate having tapered end portions presenting lower inclinedfaces, an antfriction device interposed between the upper 11nd lowerbearing plates, wedges arranged Q11. the truck bolster and locatedbeneath ille .ond portions of the lower been ing-plate and presentino,rinclined feces to the seme and adjustable with respect to the lowerbearing plate and adopted to raise end lower the same without eiectngthe relative arrangement of the seid beerimr plates, said wedgesbeingalso provided slots extending inwardly from 'the ends of the Wedges, andfastening devices piercing the end portions of the lower bearing plateand extending through the slots of the adjustable Wedges to secnle theformer to the truck bolster and retain Vthe wedges in their adjustment.

4. The combination with body sind truck bearing including upper. andlower bearing platos, the opper bearthe body bolster en@L portionspresenting lower inclinati transverse faces and provided with transverse corrugations, the intermediate portion of the lower bearing platehaving u smooth 1norizonteil lower face to rest' upon the truck bohter,en antifriction device interposed between the upper and lower bea-ringplates,

'said wedges being adjustable and adapted to reise and lower the bearingplate without effecting the relative arrangement of tbe seid bearingplates, and fastening -devices piercing the end portions of the lowerbeering plate and the wedges and securing the former to the truckbolster and retaining the wedges in their adjustment.

in testimony, that I claim the foregoing es my own, I have heretoaiiixed my signeturein the4 presence of two witnesses.

ABNER K. WOLFE.. Witnesses '3.' J. CANERGOGIE, L W. Mooney,

